Case having snap-on cover

Abstract

The main body of a case is formed with a concave portion where a cover is detachably mounted. Engaging members are provided at the opposite edges of the cover and the opposite side walls of the concave portion so as to prevent the cover from moving away from the concave portion and positioning members are provided at one edge of the cover and near the one side wall of the concave portion so as to prevent the cover from moving toward the other side wall of the concave portion.

What is claimed is: 
     
       1. A case comprising: a cover;   a main body of said case, said main body having a concave portion to which said cover is mounted;   first engaging means for preventing one edge of said cover from moving away from one side wall of said concave portion;   second engaging means for preventing another edge, of said cover opposing to said one edge from moving away from another side wall of said concave portion opposing to said one side wall; and   positioning means for preventing, in the vicinity of said another side wall of said concave portion, said cover from moving toward said one side wall of said concave portion.   
     
     
       2. A case of claim 1, wherein said first engaging means is constructed by a recess formed at said one side wall of said concave portion and a projection formed at said one edge of said cover. 
     
     
       3. A case of claim 1, wherein said second engaging means is constructed by a recess formed at said another side wall of said concave portion and a projection formed at said another edge of said cover. 
     
     
       4. A case of claim 1, wherein said cover has a side wall at the enother edge thereof and said concave portion of the main body is formed with a groove for receiving said side wall of said cover at the bottom thereof along said another side wall of the concave portion, said side wall of the cover and said groove of the concave portion constituting said positioning means. 
     
     
       5. A case of claim 4, wherein said second engaging means is constructed by a projection formed at the outer face of said side wall of the cover and a recess formed at a side wall of said groove. 
     
     
       6. A case of claim 5, wherein said groove is formed with a recessed portion at a side wall thereof to which the inner face of said side wall of the cover opposes so as to allow elastic deformation of said side wall of the cover. 
     
     
       7. A case of claim 5, wherein said side wall of the cover is made thinner at a portion where said projection is formed.